On Tue, 26 Nov 2019, Jiri Kosina wrote: > On Mon, 25 Nov 2019, Alan Stern wrote: > > > #syz test: https://github.com/google/kasan.git 46178223 > > Alan, did you get a test result from syzbot on this patch? My mailbox > doesn't seem to have it. No response, not yet. syzbot seems to be very slow testing the patches for this bug report. The earlier ones I submitted also took over a day to finish. BTW, even if this patch fixes the problem, I don't think setting collection[0].parent_idx to -1 is a very good solution. It's brittle and doesn't address the underlying ambiguity. Alan Stern